Mixing valve



April 6 ,1926. 1,579,492

' L. SCHLESINGER MIXING VALVE 2 Sheets-sheaf. 1

Filed July 14 192,3

INVENTOR:

WW Y ATTORNEYS- hy-ta 6, 1926.

| SCHLESINGER MIXING VALVE Filed July 14 1923 2 Sheets-Sheet 2 INVENTOR.

ATTORNEYS.

Patented Apr. 6, 1926.

UNITED STATES LOUIS SCHLESINGEVR, OF MILWAUKEE, wIsoon'sIN, ASSIGNVORVTOYBRAD'LEY WASH? PATENT "OFFICE.

rounrrnrnoo, or mr'nwauxnnwrs'oonsrn, A CORPORATION or WISCONSIN.

IXI G VALVE.

jcation, reference being had to the accompanying drawing, forming a part thereof.

This invention relates'parti'cularly to mixing valves for varying the temperature of water supplied to a lavatory orbath'.

Its main objects are to regulate the temperature of the'water supply without'changing or affecting its rate of flow, and generally to simplify and improve the construction and operation of devices ofthis class.

It consists in. the construction, arrangement and combination of parts as hereinafter ters designate the same parts in theseveral particularly described and pointed outin the claim. j

I In the accompanying draw ng like characfigures. p j Y 4 F l gure 1 is a SldQ-GIQVfltlOIlOf a mixing valve as constructed and installed in ac cordance with the invention, with a lavatorywhich is shown-in central vertical section;

Fig.2 is an. enlarged horizontal section on the" line 2'2, Figs. 1' and 3,0f the'mixing .valve and its connections; Fig. 3 is a vertical cross section on the line 3 3, Fig. 2, showing the mixing valve plug adjusted to supply a mixture of hot and cold water to the lavatory; and Fig.4 is asimilar section showing the plug adjusted to supply hot water only to the lavatory, I I

The mixing valve-per se, which constitutes the principal part of the invention, comprises a cylindrical Leasing 1, provided at one end with an axial outlet port 2 andpipe coupling 3, and on opposite sides with lateral inlet ports 4 and 5 and pipe couplings 6 and 7. The casing is extended on the opposite side of the inlet ports from the out let port, to pass through the wall of a lavatory or part of a lavatory, such as'a hollow pedestal 9 on which a washbowl or basin 10 is mounted.

At its outer end the casing has a removable cap 12, threaded thereon and provided with a stufiing box 18. Between the cap 12 and the wall of the pedestal 9,,a flanged collar 15 is threaded on the valve casing 1, to close the opening in the pedestal through whichthe Application fiiea'iui 14, 1923. Serial no. 651,544.

' casing passes, support the casing against I inward displacement, and serve as a lock nut for the cap.

At its innerjend around the outlet port 2,

the casing is formed with a shoulder 17, and adjacent this shoulder, is provided with an inwardly projectingstop stud 1 8.

A hollow cylindrical plug 20, rotatably fitted in the casing 1 with'its'open'end seated against the shoulder 17; around the outletport 2, is provided with lateral ports .21 j

and. 22 opening into its bore and arranged to register in extreme positions of the plug with and fully open, either inlet port 4:

or 5, while the other inlet port is closed, as

shown for example, in Fig. 4, and in inter mediate positions to partially open 'bothf inlet ports, as shown in Fig. 3, the combined area of the partially opened inletpojrts inall intermediate positions of the plug being equal tothe area of either fully opened inlet port.' 5

At its inner open end the valve plug is formed with a notch 24:, the sides of which, by engagement with the stud 18, act as stops to limitthemovement of the plug in either direction in position to fully open either of the inlet ports-4' and 5, while the" other of said ports is closed, as shown-in FigMl; The valve plug is formed or provided'with an operating stem'26, extendingthrough the cap 12an'd stufiing box 13, and providedjat its outer end with a handle '27 At its inner end the stem is enlarged'or is formed adja cent the. outer end of theacasing 1, :with a shoulder 29, and between this shoulder and the cap 12, a packing washer 30 is interposed to hold the plug snugly against the shoulder 17 and to prevent leakage between the casing and cap.

The mixing valve is. specially designed for use with a lavatory in. connection with a plyv of water to the lavatory independently of the mixing valve, the. solefunction of which is to regulate the temperature of the water without aifecting its volume or rate of flow. r

In the installation of the mixing valve in connection with a lavatory having a fountain provided with a valve for controlling and regulating the supply of water thereto, the

valve for controlling and regulating the supinlet ports 4 and 5 of the'mixing valve are connected with cold and hot water supply pipes32 and 33 respectively, and the outlet port 2 is connected by a pipe 34 with the fountain head 35 of the lavatory.

As shown in Fig. 1, the fountain head 35 is supported centrally above the basin or bowl it) at the upper end of the pipe Set, and

is provided with a discharge oritice or an annular series of oritices adapted to discharge water outwardly and downwardly into the bowl within convenient reach of a number of persons standing around the bowl.

Above and in alignment with the pipe 34 the lower wall of the head 35 is provided with an inlet port and valve seat, to which is titted avalve 36 for controlling and regulat ing the admission of water into the head. The valve 36 is provided with an upwardly extendin operating stem 37 having a handle 38 atits upper end accessible to users of the lavatory on all sides of the bowl. The pipe 34 pereferably passes through a removable screw plug d0, threaded in a lateral opening in a part of the waste pipe l-l of the lavatory, thence upwardly through said wast-e pipe to the fountain head 35, which is centrally supported thereon. The waste pipe 4L1 is connected with a central opening in the bottom of the bowl or basin 10 by a coupling supporting an outlet fitting and strainer 42, through which the pipe 3-l passes upwardly to the fountain head. A tubular housing and standard ii-3, mounted at its lower end on the fitting 4:2, surrounds the pipe and cooperates with said pipe to support the fountain head at itsupper end.

"With this arrangement of the pipe connections, a single opening in the bottom of the bowl or basin 10 serves for the waste outlet of the bowl and for the water supply to the fountain head, and the connection between the mixing valve and the fountain head, the cold and hot water supply pipes to the mixing valve and the waste pipe from' the bowl, are enclosed, concealed and protected by the pedestal 9 and the tubular housing and standard 4C3.

The mixing valve being located near the top of the pedestal underneath the bowl is out of the way and practically out of sight, and the handle 2? on the extended stem 26 is in a conveniently accessible position at one side of the bowl and out of the way.

Various changes in minor details of construction of the mixing valve and in the connections of the valve, with lavatories having bowls or basins and fountains ofditl'erentdesigns, may be made without departure from the principle and scope of the invention as defined in the following claim.

I claim:

In a mixing valve the combination of a cylindrical casing provided at one end witl an outlet port and pipe connection, an internal shoulder around the outlet port, and an inwardly projecting stop stud. and adja' cent the same end on opposite sides with inlet ports and pipe couplings; a hollow cylindrical plug rotatably fitting in the bore of the casing with its end against said shoulder and its bore in open communication with said outlet port, and provided with lateral ports opening into its bore. and arranged to register with and open one inlet port while the other inlet port is closed and in intermediate positions to partially open both inner ports, stops formed by the sides of a notch in the open end of the plug arranged for engagement with said stop stud to limit the movement of the plug in either direction in position to open either inlet port; a removable cap threaded on the end of the casing opposite the outlet port and provided with a stutling box; and a stem attached at one end to and extending axially outward from the plug through the cap and stuffing box and provided with a shoulder for engagement with the cap.

In witness whereof I hereto afiix my signa ture.

LOUIS SCHLESINGER. 

